body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: #f5f7fa;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  width: 100%;
  margin: 0;
  padding: 0;
}

.container {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.el-container {
  width: 100%;
  margin: 0;
  padding: 0;
}

.el-header, .el-footer {
  width: 100%;
  margin: 0;
  padding: 0;
}

.el-main {
  width: 100%;
  margin: 0;
  padding: 0;
}

@media (max-width: 768px) {
  .container {
    padding: 0;
  }

  .el-form-item__label {
    width: 100% !important;
    text-align: left;
  }

  .el-form-item__content {
    margin-left: 0 !important;
  }

  .el-button {
    width: 100%;
    margin-bottom: 10px;
  }

  .chat-container {
    padding: 0;
  }

  .message-item {
    max-width: 80%;
  }
}